Dispensing Syringe/Barrel for Thermal Paste

Product Specifications

Technical details and manufacturing context for Dispensing Syringe/Barrel

Definition

The dispensing syringe/barrel is a critical component of a thermal paste dispenser. It consists of a barrel that stores the thermal paste compound and a syringe-like plunger mechanism that controls the extrusion of paste onto electronic components. This component ensures controlled, consistent application of thermal interface material between heat-generating components and heat sinks. The barrel is typically made from polypropylene (PP), polycarbonate (PC), or stainless steel, offering compatibility with various thermal paste formulations. Available volume capacities range from 5 to 300 mL, with barrel inner diameters from 15 to 60 mm and lengths from 50 to 200 mm. The operating pressure range is 1.0 to 1.6 MPa. Dispensing accuracy is ±0.05 mL at 20°C with a calibrated system. The operating temperature range is -40 to 85°C, and the material is typically PP or PE, with chemical resistance to pH 2-12. Sterilization can be performed via ethylene oxide or gamma irradiation, referencing ISO 11135. The weight varies from 10 to 50 g depending on size and wall thickness. These parameters are directory reference ranges and must be confirmed for the specific model and application. The dispensing syringe/barrel is designed for use in automated or manual dispensing systems, ensuring precise and repeatable application of thermal paste. It is essential for maintaining thermal performance in electronics assembly. When selecting a dispensing syringe/barrel, verify the volume capacity, dimensions, and material compatibility with the thermal paste. Confirm the operating pressure and temperature ratings with the manufacturer. Check the dispensing accuracy and sterilization method if required. Always consult the legal manufacturer or supplier for model-specific values and standards.

Working Principle

The barrel holds thermal paste under controlled pressure. When the plunger is depressed, either manually or via an automated mechanism, it creates positive pressure that forces paste through the nozzle tip. The barrel's smooth interior surface and precise plunger fit minimize air pockets and ensure consistent paste flow. The plunger's movement is calibrated to deliver a specific volume per stroke, enabling accurate dispensing. The operating pressure range of 1.0 to 1.6 MPa ensures adequate force for extrusion while preventing over-pressurization. The barrel's design prevents leakage and maintains paste integrity. The dispensing accuracy of ±0.05 mL is achieved with a calibrated system, ensuring repeatable application. The temperature range of -40 to 85°C ensures material stability during operation. The chemical resistance to pH 2-12 allows compatibility with various thermal paste formulations. The sterilization method, if required, ensures cleanliness for sensitive applications.

Common Materials

Polypropylene (PP), Polycarbonate (PC), Stainless Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Volume Capacity	5–300 mL	Common sizes: 5, 10, 30, 50, 300 mL
Barrel Inner Diameter	15–60 mm	Matches piston and nozzle fit
Barrel Length	50–200 mm	Affects dispensing volume and handling
Dispensing Accuracy	±0.05 mL	At 20°C with calibrated system
Operating Temperature	-40–85 °C	Material integrity outside range
Material	PP/PE	Polypropylene or polyethylene
Chemical Resistance	pH 2–12	Resistant to common solvents
Sterilization Method	EO/γ	Ethylene oxide or gamma irradiationISO 11135
Weight	10–50 g	Depends on size and wall thickness

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Barrel Body Part
Primary container that holds thermal paste material

Material: Polypropylene or Polycarbonate
Plunger Part
Creates pressure to extrude paste through nozzle

Material: Polypropylene with rubber seal
Plunger Seal Part
Creates airtight seal between plunger and barrel wall

Material: Silicone or Buna-N rubber
Nozzle Thread Part
Attachment point for dispensing tips and nozzles

Material: Polypropylene or Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Dispensing Syringe/Barrel.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Thermal Paste Dispenser

View system integration details

Manufacturers of Dispensing Syringe/Barrel

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Dongguan Jaten Instrument Co., Ltd.

Dongguan, Guangdong, CN

Also makes: Coordinate Measuring Machine, Coordinate Measuring Machine (CMM)

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Dispensing Syringe / Cartridge”
View source page ↗ jatentech.com · checked 2026-09-05

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the volume capacity range of the dispensing syringe/barrel?

The volume capacity ranges from 5 to 300 mL, but you must confirm the exact capacity for your specific model with the manufacturer.

What materials are available for the barrel?

The barrel can be made from polypropylene (PP), polycarbonate (PC), or stainless steel. The choice depends on the thermal paste compatibility and application requirements.

What is the operating pressure range?

The operating pressure range is 1.0 to 1.6 MPa. Verify the pressure rating for your specific model.

Can the dispensing syringe/barrel be sterilized?

Yes, it can be sterilized using ethylene oxide or gamma irradiation, referencing ISO 11135. Confirm the sterilization method with the supplier if required.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

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pressure:	Up to 10 bar (145 psi)
flow rate:	0.1-5 ml/min
temperature:	-40°C to 150°C
slurry concentration:	Up to 80% solids by weight

Dispensing Syringe/Barrel

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards